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How the 1910 Return of Halley's Comet (Almost) Destroyed Civilization

History Unplugged Podcast

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The Beginning of a Cottage Industry of Protection Against the Cyanogen Gas

There was a cottage industry of protection against the cyanogen gas. People would try to build an underground cave or dig out some sort of a gas fallout shelter. A voodoo doctor claimed that he'd invented a cyanogen pill in Haiti. Saloon keepers were arguing that the best way to ward off the effect of cyanogen gas was to drink scotch. And then you had people who were selling insurance policies.

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